A Maximal Rowing Ergometer Protocol to Predict Maximal Oxygen Uptake in Female Rowers

Abstract

Background: Laboratory assessment of maximal oxygen uptake (V̇O₂max) is physically and mentally draining for the athlete and requires expensive laboratory equipment. Indirect measurement of V̇O₂max could provide a practical alternative to laboratory testing. Purpose: To examine the relationship between the maximal power output (MPO) in an individualized 7x2 min incremental test (INCR-test) and V̇O₂max and to develop a regression equation to predict V̇O₂max from MPO in female rowers. Methods: 20 female club and Olympic rowers (development group) performed the INCR-test on a Concept2 rowing ergometer to determine V̇O₂max and MPO. A linear regression analysis was used to develop a prediction of V̇O₂max from MPO. Cross validation analysis of the prediction equation was performed using an independent sample of 10 female rowers (validation group). Results: A high correlation coefficient (r=0.94) was found between MPO and V̇O₂max. The following prediction equation was developed: V̇O₂max (mL·min^-1) = 9.58*MPO (W) + 958. No difference was found between the mean predicted V̇O₂max in the INCR-test (3480 mL·min^-1) and the measured V̇O₂max (3530 mL·min^-1). Standard error of estimate was 162 mL·min^-1 and %SEE was 4.6%. The prediction model only including MPO, determined during the INCR-test, explained 89% of the variability in V̇O₂max. Conclusion: The INCR-test is a practical and accessible alternative to laboratory testing of V̇O₂max.